Effect of corrosion pit density on the fatigue life of aluminum 1050A

Fatigue and corrosion fatigue damage of materials is often the most important cause of frequent stops of machines and industrial equipment. For this, many researches are investigated in this field. The aim of this work is to study the effect of the corrosion pit density on the fatigue life of aluminum 1050A. Fatigue and corrosion fatigue tests carried out under tension-compression loading with load ratio R = − 1, at frequency of 78 Hz, and ambient temperature on not corroded and corroded specimens in 3.5% NaCl solution during different immersion times. From the experimental study, it was concluded that the pitting density increases as the immersion time increases and does not have a large effect on the fatigue strength of aluminum 1050A after 8-, 24-, 40-, 56-, and 72-h immersion.